|
Income Taxes (Details) (USD $)
|
12 Months Ended |
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
| Income (loss) before income taxes: |
|
|
|
| Domestic |
$ 3,633,000 |
$ (4,055,000) |
$ (4,697,000) |
| Foreign |
118,000 |
473,000 |
812,000 |
| Income (loss) before income taxes |
3,751,000 |
(3,582,000) |
(3,885,000) |
| Domestic |
|
|
|
| Federal |
64,000 |
15,000 |
|
| State |
53,000 |
57,000 |
|
| Foreign |
147,000 |
69,000 |
|
| Total current tax expense |
264,000 |
141,000 |
|
| Domestic |
|
|
|
| Federal |
1,572,000 |
(710,000) |
(1,773,000) |
| State |
44,000 |
(65,000) |
(280,000) |
| Foreign |
(16,000) |
88,000 |
251,000 |
| Valuation allowance |
(1,616,000) |
687,000 |
1,802,000 |
| Total deferred tax benefit |
(16,000) |
|
|
| Total income tax expense |
248,000 |
141,000 |
|
| Reconciliation from the U.S. statutory federal income tax rate to the effective income tax rate |
|
|
|
| Federal income tax rate (as a percent) |
34.00% |
(34.00%) |
(34.00%) |
| State taxes, net of federal benefit (as a percent) |
1.10% |
1.10% |
(4.10%) |
| Stock-based compensation (as a percent) |
22.70% |
15.00% |
9.10% |
| Stock warrant (as a percent) |
6.40% |
|
|
| Research and development credits (as a percent) |
(18.30%) |
|
(16.00%) |
| Change in valuation allowance (as a percent) |
(42.00%) |
17.30% |
46.40% |
| Other, net (as a percent) |
2.70% |
4.50% |
(1.40%) |
| Effective income tax rate (as a percent) |
6.60% |
3.90% |
0.00% |
| Deferred Tax Assets: |
|
|
|
| Reserves and accruals |
2,146,000 |
3,396,000 |
|
| Inventories |
1,059,000 |
606,000 |
|
| Net operating loss carryforwards |
27,865,000 |
30,165,000 |
|
| Property, plant and equipment |
1,327,000 |
1,054,000 |
|
| Stock-based compensation |
1,233,000 |
783,000 |
|
| Research and development credit carryforwards |
4,091,000 |
3,254,000 |
|
| Other |
163,000 |
204,000 |
|
| Total deferred tax assets |
37,884,000 |
39,462,000 |
|
| Valuation allowance |
(37,842,000) |
(39,462,000) |
|
| Total deferred tax assets, net |
42,000 |
|
|
| Deferred Tax Liabilities: |
|
|
|
| Undistributed earnings of foreign subsidiaries |
(15,000) |
|
|
| Property and equipment |
(11,000) |
|
|
| Total deferred tax liabilities |
(26,000) |
|
|
| Net deferred tax asset |
16,000 |
|
|
| Reversal of valuation allowance for deferred tax assets |
|
92,000 |
|
| Increase (decrease) in net valuation allowance |
$ (1,600,000) |
$ 700,000 |
|