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Condensed Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Current assets:    
Cash and cash equivalents $ 5,203 $ 4,477
Accounts receivable-trade, net of allowance of $398 and $225 at March 31, 2013 and December 31,2012 11,512 9,731
Inventories, net 5,195 5,616
Costs and estimated earnings in excess of billings on uncompleted contracts 2,575 2,205
Prepaid expenses and other current assets 327 318
Total current assets 24,812 22,347
Property, plant and equipment, net 5,045 4,922
Investments in foreign joint ventures 12,913 11,408
Other assets 264 297
Total assets 43,034 38,974
Current liabilities:    
Accounts payable 5,196 4,438
Accrued payroll and benefits 1,190 1,519
Other accrued expenses 358 513
Billings in excess of costs and estimated earnings on uncompleted contracts 5,338 3,576
Short-term notes payable 14 54
Other current liabilities 17 9
Total current liabilities 12,113 10,109
Notes payable 500 500
Deferred income taxes 3,329 3,058
Deferred compensation 156 122
Total liabilities 16,098 13,789
Convertible preferred stock:    
Redeemable convertible preferred stock, Series A, net of discount of $796 at March 31, 2013 and $806 at December 31, 2012; $0.001 par value, 1,000,000 shares authorized, issued and outstanding at March 31, 2013, and December 31, 2012 4,204 4,194
Stockholders' equity:    
Common stock; $0.001 par value, 50,000,000 shares authorized, 7,960,925 and 7,919,032 shares issued and outstanding at March 31, 2013 and December 31, 2012 8 8
Treasury stock, at cost (49,863 shares at March 31, 2013 and 20,222 shares at December 31, 2012) (238) (92)
Additional paid-in capital 9,800 9,597
Accumulated other comprehensive income 931 900
Retained earnings; including accumulated statutory reserves in equity method investments of $1,857 and $1,620 at March 31, 2013 and December 31, 2012 12,231 10,578
Total stockholders' equity 22,732 20,991
Total liabilities and stockholders' equity $ 43,034 $ 38,974