Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)
|
3 Months Ended |
12 Months Ended |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
| Cash and Cash Equivalents |
|
|
|
|
|
| Amounts on deposit in excess of federally insured limits |
$ 5,000,000
|
$ 6,800,000
|
$ 5,000,000
|
$ 6,800,000
|
|
| Basic and Diluted Loss Per Common Share |
|
|
|
|
|
| Number of options and warrants that were not included because their effect is antidilutive |
|
|
2,197,369
|
2,924,419
|
2,860,219
|
| Fair Value Measurements |
|
|
|
|
|
| Cash and cash equivalents |
5,700,000
|
7,600,000
|
$ 5,700,000
|
$ 7,600,000
|
|
| Short term investments |
1,500,000
|
1,500,000
|
1,500,000
|
$ 1,500,000
|
|
| Charge recorded for employee options and restricted stock |
$ 483,000
|
$ 616,000
|
|
|
|
| Share-based Goods and Nonemployee Services Transaction, Quantity of Securities Issued |
|
|
|
24,000
|
|
| Charge recorded for non-employees |
|
|
10,007
|
$ 32,428
|
$ 369,844
|
| Employee Stock Options and Restricted Stock [Member] |
|
|
|
|
|
| Fair Value Measurements |
|
|
|
|
|
| Charge recorded for employee options and restricted stock |
|
|
$ 715,009
|
$ 1,010,489
|
$ 2,545,060
|
| Licensee One [Member] | Sales [Member] |
|
|
|
|
|
| Revenue Recognition/Fee Income: |
|
|
|
|
|
| Concentration risk percentage |
|
|
33.00%
|
36.00%
|
40.00%
|
| Licensee Two [Member] | Sales [Member] |
|
|
|
|
|
| Revenue Recognition/Fee Income: |
|
|
|
|
|
| Concentration risk percentage |
|
|
15.00%
|
11.00%
|
12.00%
|
| Licensee Three [Member] | Sales [Member] |
|
|
|
|
|
| Revenue Recognition/Fee Income: |
|
|
|
|
|
| Concentration risk percentage |
|
|
9.00%
|
9.00%
|
6.00%
|
| Licensee Four [Member] | Sales [Member] |
|
|
|
|
|
| Revenue Recognition/Fee Income: |
|
|
|
|
|
| Concentration risk percentage |
|
|
|
9.00%
|
6.00%
|
| Licensee Five [Member] | Sales [Member] |
|
|
|
|
|
| Revenue Recognition/Fee Income: |
|
|
|
|
|
| Concentration risk percentage |
|
|
|
5.00%
|
5.00%
|
| Licensee Six [Member] | Sales [Member] |
|
|
|
|
|
| Revenue Recognition/Fee Income: |
|
|
|
|
|
| Concentration risk percentage |
|
|
|
|
5.00%
|
| Large Architectural Glass Project [Member] | Sales [Member] |
|
|
|
|
|
| Revenue Recognition/Fee Income: |
|
|
|
|
|
| Concentration risk percentage |
|
|
14.00%
|
|
|
| Company One [Member] | Accounts Receivable [Member] |
|
|
|
|
|
| Revenue Recognition/Fee Income: |
|
|
|
|
|
| Concentration risk percentage |
|
|
21.00%
|
19.00%
|
|
| Company Two [Member] | Accounts Receivable [Member] |
|
|
|
|
|
| Revenue Recognition/Fee Income: |
|
|
|
|
|
| Concentration risk percentage |
|
|
15.00%
|
17.00%
|
|
| Company Three [Member] | Accounts Receivable [Member] |
|
|
|
|
|
| Revenue Recognition/Fee Income: |
|
|
|
|
|
| Concentration risk percentage |
|
|
12.00%
|
10.00%
|
|
| Company Four [Member] | Accounts Receivable [Member] |
|
|
|
|
|
| Revenue Recognition/Fee Income: |
|
|
|
|
|
| Concentration risk percentage |
|
|
11.00%
|
10.00%
|
|