Income Taxes (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Operating Loss Carryforwards [Line Items]
Provision (benefit) for income taxes	$ 3,948,000	$ (524,000)
Tax Credit Carryforward [Line Items]
Alternative minimum tax	111,000
Expiration date	2033
Deferred tax assets [Abstract]
Inventory reserve	996,000	1,022,000
Fixed assets	0	0
Other reserves and accruals	90,000	92,000
Stock-based compensation	295,000	173,000
Undistributed foreign earnings	0	0
Other	0	0
Tax credit carry-forwards	1,648,000	1,464,000
Federal tax loss carry-forwards	2,586,000	2,116,000
State tax loss carry-forwards	541,000	513,000
Foreign tax loss carry-forwards	276,000	52,000
Total deferred income tax assets	6,432,000	5,432,000
Valuation allowance	(5,968,000)	(307,000)
Net deferred	464,000	5,125,000
Deferred tax liabilities [Abstract]
Deferred Tax Liability Inventory	0	0
Fixed assets	375,000	443,000
Deferred Tax Liability Other Accruals	0	0
Deferred Tax Liability, Stock-Based Compensation	0	0
Undistributed foreign earnings	14,000	725,000
Other	75,000	35,000
Total deferred income tax liabilities	464,000	1,203,000
Deferred tax assets (liabilities), net	0	3,922,000
Current:
Federal	0	0
State and local	3,000	2,000
Foreign	23,000	50,000
Total Current	26,000	52,000
Deferred:
Federal	(1,463,000)	(527,000)
State and local	(51,000)	4,000
Deferred Foreign Income Tax Expense (Benefit)	(225,000)	(52,000)
Total before change in valuation allowance	(1,739,000)	(575,000)
Income Tax Reconciliation, Change in Deferred Tax Assets Valuation Allowance	5,661,000	(1,000)
Net deferred	3,922,000	(576,000)
Reconciliation of provision (benefit) for income taxes [Abstract]
Tax provision at expected statutory rate	(1,452,000)	(627,000)
State taxes, net of federal benefit	(38,000)	6,000
Permanent differences	25,000	21,000
Credits	(184,000)	0
Changes in estimated research and development credits	0	93,000
Foreign tax expense, and other	(64,000)	(16,000)
Change in valuation allowance for utilization of Georgia State net operating loss	5,661,000	(1,000)
Provision (benefit) for income taxes	3,948,000	(524,000)
(Loss) income before income taxes from domestic operations	(2,872,000)	(1,638,000)
Profit before income taxes from foreign operations	(1,399,000)	(206,000)
Earnings of Company's foreign subsidiaries not considered to be indefinitely reinvested	(1,366,000)
Earnings of non-U.S. subsidiaries considered to be indefinitely reinvested	556,000
Research and development credit carryforwards [Member]
Tax Credit Carryforward [Line Items]
Tax credit carryforward amount	1,178,000
Expiration date	2033
Foreign tax credit carryforwards [Member]
Tax Credit Carryforward [Line Items]
Tax credit carryforward amount	359,000
Expiration date	2020
Federal [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	7,607,000
State [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 14,559,000