Organization and Significant Accounting Policies (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Net Income (Loss) Attributable to Parent	$ (676,000)	$ (356,000)
Retained Earnings (Accumulated Deficit)	(33,875,000)	(33,199,000)
Non Interest Bearing Accounts Insured, Percentage	100.00%
Cash, Uninsured Amount	152,000
Accounts Receivable, Major Customer, Percentage	more than 10
Inventory, Net of Allowances, Customer Advances and Progress Billings	246,000	33,000
Standard Product Warranty Description	DCT purchases the majority of its finished scanner imaging product from one vendor, who warrants the products against defects in material and workmanship for a period of 18 months after the completion of manufacture.
Defined Benefit Plan, Funded Percentage	50.00%
Customers More than 10 Percentage [Member]
Trade Receivables Held-for-sale, Amount	987,000
Customer D [Member]
Accounts Receivable, Major Customer, Percentage	less than 10
Maximum [Member]
Cash, FDIC Insured Amount	$ 250,000