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Consolidated Balance Sheets - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Current assets    
Cash $ 7,449 $ 1,364
Investment securities, available-for-sale, at fair value 1,208 1,176
Accounts receivable, net    
Trade - billed (less allowance for doubtful accounts of $388 and $333), including contract retentions 9,753 12,723
Trade - unbilled 703 310
Inventories, net    
Raw materials 640 488
Finished goods 1,524 1,754
Prepaid expenses and other assets 838 784
Refundable income taxes 123 432
Total current assets 22,238 19,031
Property and equipment, net 18,923 17,735
Deferred buy-back lease asset, net 4,446 5,042
Other assets 326 307
Total assets 45,933 42,115
Current liabilities    
Accounts payable - trade 2,499 3,180
Accrued expenses and other liabilities 1,016 125
Deferred revenue 1,611 1,891
Accrued compensation 1,342 1,075
Accrued income taxes 305 0
Dividend payable 0 282
Deferred buy-back lease obligation 1,203 966
Operating lease liabilities 83 81
Current maturities of notes payable 819 925
Customer deposits 594 1,077
Total current liabilities 9,472 9,602
Deferred revenue 523 241
Deferred buy-back lease obligation 4,091 5,183
Operating lease liabilities 232 296
Notes payable - less current maturities 6,961 4,086
Deferred tax liability 1,881 1,886
Total liabilities 23,160 21,294
Stockholders' equity    
Preferred stock, $.01 par value; authorized 1,000,000 shares, none issued and outstanding 0 0
Common stock, $.01 par value; authorized 8,000,000 shares; 5,224,911 and 5,224,911 issued and 5,183,991 and 5,164,324 outstanding, respectively 52 52
Additional paid-in capital 6,242 6,242
Treasury stock, at cost, 40,920 shares (102) (102)
Retained earnings 16,581 14,629
Total stockholders' equity 22,773 20,821
Total liabilities and stockholders' equity $ 45,933 $ 42,115