|
STOCK OPTION PLANS (Details) (USD $)
|
12 Months Ended |
|
Dec. 31, 2013
Plan
|
Dec. 31, 2012
|
|
2005 Equity Incentive Plan [Member]
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Number of equity stock based compensation plans |
2
|
|
| Shares authorized but unissued common stock (in shares) |
25,000,000
|
|
| Dividend yield (in hundredths) |
|
0.00%
|
| Volatility (in hundredths) |
|
98.00%
|
| Risk-free interest rate (in hundredths) |
|
0.45%
|
| Expected lives |
|
5 years 6 months
|
| Weighted average fair value of options granted (in dollars per share) |
|
$ 0.29
|
| Options [Roll Forward] |
|
|
| Outstanding options, beginning balance (in shares) |
2,663,784
|
2,266,784
|
| Granted (in shares) |
0
|
1,235,000
|
| Exercised (in shares) |
(125,000)
|
|
| Expired/forfeited (in shares) |
(1,099,584)
|
(838,000)
|
| Outstanding options, ending balance (in shares) |
1,439,200
|
2,663,784
|
| Exercisable, ending balance (in shares) |
1,407,950
|
|
| Weighted- average exercise price [Roll Forward] |
|
|
| Outstanding options, beginning of period (in dollars per share) |
$ 1.36
|
$ 2.17
|
| Granted (in dollars per share) |
|
$ 0.39
|
| Exercised (in dollars per share) |
$ 0.23
|
|
| Expired/forfeited (in dollars per share) |
$ 1.75
|
$ 2.14
|
| Outstanding options, ending balance (in dollars per share) |
$ 1.18
|
$ 1.36
|
| Exercisable, end on period (in dollars per share) |
$ 1.20
|
|
| Intrinsic value of options outstanding |
$ 11,000
|
$ 7,000
|
| Intrinsic value of options exercisable |
10,000
|
1,000
|
| Total intrinsic value of options exercised |
3,000
|
0
|
| Information regarding options outstanding by range of exercise prices [Abstract] |
|
|
| Number of options outstanding (in shares) |
1,439,200
|
|
| Number of options exercisable (in shares) |
1,407,950
|
|
| Number of shares available for grant (in shares) |
0
|
|
|
2005 Equity Incentive Plan [Member] | $0.23 [Member]
|
|
|
| Information regarding options outstanding by range of exercise prices [Abstract] |
|
|
| Range of exercise prices, Upper range limit (in dollars per share) |
$ 0.23
|
|
| Number of options outstanding (in shares) |
525,000
|
|
| Options outstanding, Weighted average, Remaining life in years |
9 years
|
|
| Options outstanding, Weighted average, Exercise price (in dollars per share) |
$ 0.23
|
|
| Number of options exercisable (in shares) |
493,750
|
|
| Options exercisable, Weighted average, Remaining life in years |
9 years
|
|
| Options exercisable, Weighted average, Exercise price (in dollars per share) |
$ 0.23
|
|
|
2005 Equity Incentive Plan [Member] | $0.61 - 0.85 [Member]
|
|
|
| Information regarding options outstanding by range of exercise prices [Abstract] |
|
|
| Range of exercise prices, Lower range limit (in dollars per share) |
$ 0.61
|
|
| Range of exercise prices, Upper range limit (in dollars per share) |
$ 0.85
|
|
| Number of options outstanding (in shares) |
320,000
|
|
| Options outstanding, Weighted average, Remaining life in years |
7 years 4 months 24 days
|
|
| Options outstanding, Weighted average, Exercise price (in dollars per share) |
$ 0.63
|
|
| Number of options exercisable (in shares) |
320,000
|
|
| Options exercisable, Weighted average, Remaining life in years |
7 years 4 months 24 days
|
|
| Options exercisable, Weighted average, Exercise price (in dollars per share) |
$ 0.63
|
|
|
2005 Equity Incentive Plan [Member] | $1.38 [Member]
|
|
|
| Information regarding options outstanding by range of exercise prices [Abstract] |
|
|
| Range of exercise prices, Upper range limit (in dollars per share) |
$ 1.38
|
|
| Number of options outstanding (in shares) |
70,000
|
|
| Options outstanding, Weighted average, Remaining life in years |
6 years
|
|
| Options outstanding, Weighted average, Exercise price (in dollars per share) |
$ 1.38
|
|
| Number of options exercisable (in shares) |
70,000
|
|
| Options exercisable, Weighted average, Remaining life in years |
6 years
|
|
| Options exercisable, Weighted average, Exercise price (in dollars per share) |
$ 1.38
|
|
|
2005 Equity Incentive Plan [Member] | $2.27-3.15 [Member]
|
|
|
| Information regarding options outstanding by range of exercise prices [Abstract] |
|
|
| Range of exercise prices, Lower range limit (in dollars per share) |
$ 2.27
|
|
| Range of exercise prices, Upper range limit (in dollars per share) |
$ 3.15
|
|
| Number of options outstanding (in shares) |
524,200
|
|
| Options outstanding, Weighted average, Remaining life in years |
7 years 8 months 12 days
|
|
| Options outstanding, Weighted average, Exercise price (in dollars per share) |
$ 2.43
|
|
| Number of options exercisable (in shares) |
524,200
|
|
| Options exercisable, Weighted average, Remaining life in years |
7 years 8 months 12 days
|
|
| Options exercisable, Weighted average, Exercise price (in dollars per share) |
$ 2.55
|
|
|
1995 Stock Awards Plan [Member]
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Shares authorized but unissued common stock (in shares) |
500,000
|
|
| Options [Roll Forward] |
|
|
| Outstanding options, beginning balance (in shares) |
39,500
|
57,500
|
| Expired/forfeited (in shares) |
(34,500)
|
(18,000)
|
| Outstanding options, ending balance (in shares) |
5,000
|
39,500
|
| Exercisable, ending balance (in shares) |
5,000
|
|
| Weighted- average exercise price [Roll Forward] |
|
|
| Outstanding options, beginning of period (in dollars per share) |
$ 15.87
|
$ 16.58
|
| Expired (in dollars per share) |
$ 15.21
|
$ 18.14
|
| Outstanding options, ending balance (in dollars per share) |
$ 20.45
|
$ 15.87
|
| Exercisable, end on period (in dollars per share) |
$ 20.45
|
|
| Intrinsic value of options outstanding |
0
|
0
|
| Intrinsic value of options exercisable |
$ 0
|
$ 0
|
| Information regarding options outstanding by range of exercise prices [Abstract] |
|
|
| Number of options outstanding (in shares) |
5,000
|
|
| Number of options exercisable (in shares) |
5,000
|
|
| Number of shares available for grant (in shares) |
0
|
|
| Options exercisable over a period |
10 years
|
|
|
1995 Stock Awards Plan [Member] | Minimum [Member]
|
|
|
| Information regarding options outstanding by range of exercise prices [Abstract] |
|
|
| Options granted and vest ratably over a period |
4 years
|
|
|
1995 Stock Awards Plan [Member] | Maximum [Member]
|
|
|
| Information regarding options outstanding by range of exercise prices [Abstract] |
|
|
| Options granted and vest ratably over a period |
5 years
|
|
|
1995 Stock Awards Plan [Member] | 12.40 [Member]
|
|
|
| Information regarding options outstanding by range of exercise prices [Abstract] |
|
|
| Range of exercise prices, Upper range limit (in dollars per share) |
$ 12.40
|
|
| Number of options outstanding (in shares) |
2,500
|
|
| Options outstanding, Weighted average, Remaining life in years |
2 years
|
|
| Options outstanding, Weighted average, Exercise price (in dollars per share) |
$ 12.40
|
|
| Number of options exercisable (in shares) |
2,500
|
|
| Options exercisable, Weighted average, Remaining life in years |
2 years
|
|
| Options exercisable, Weighted average, Exercise price (in dollars per share) |
$ 12.40
|
|
|
1995 Stock Awards Plan [Member] | 28.50 [Member]
|
|
|
| Information regarding options outstanding by range of exercise prices [Abstract] |
|
|
| Range of exercise prices, Upper range limit (in dollars per share) |
$ 28.50
|
|
| Number of options outstanding (in shares) |
2,500
|
|
| Options outstanding, Weighted average, Remaining life in years |
1 year
|
|
| Options outstanding, Weighted average, Exercise price (in dollars per share) |
$ 28.50
|
|
| Number of options exercisable (in shares) |
2,500
|
|
| Options exercisable, Weighted average, Remaining life in years |
1 year
|
|
| Options exercisable, Weighted average, Exercise price (in dollars per share) |
$ 28.50
|
|