Consolidated Statements Of Cash Flows (USD $)	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010
Cash Flows from Operating Activities:
Net income	$ 821,205	$ 1,702,775
Noncash items included in net income:
Depreciation and amortization	213,394	224,343
Deferred income taxes	(19,000)	(94,000)
Stock based compensation	72,883	59,779
(Gain) loss on disposal of property	(1,900)
Tax benefit from stock options exercised	(161,460)	(12,000)
Change in current assets and liabilities:
Accounts receivable	(614,236)	3,777,332
Inventory	(120,174)	(735,095)
Prepaid items and other assets	(384,424)	(506,406)
Income taxes receivable	161,460	82,695
Accounts payable	(57,255)	402,665
Accrued expenses	(167,451)	(470,869)
Billings in excess of costs and estimated earnings	(156,312)	370,943
Deferred rent	(104,314)	(104,313)
Net Cash (Used) Provided by Operating Activities	(517,584)	4,697,849
Cash Flows from Investing Activities:
Restricted cash and cash equivalents	(10,718)	143,273
Purchase of property and equipment	(76,240)	(75,583)
Other assets	5,850
Proceeds from the sale of property and equipment	1,900
Net Cash (Used) Provided by Investing Activities	(79,208)	67,690
Cash Flows from Financing Activities:
Tax benefit from stock options exercised	161,460	12,000
Proceeds from stock options exercised	85,100	3,400
Net Cash Provided by Financing Activities	246,560	15,400
Effect of exchange rate changes on cash and cash equivalents	(66,408)	31,452
Net increase (decrease) in cash and cash equivalents	(416,640)	4,812,391
Cash and Cash Equivalents, beginning of year	9,627,961	4,666,983
Cash and Cash Equivalents, end of year	$ 9,211,321	$ 9,479,374

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).