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SEGMENT REPORTING SEGMENT REPORTING - Reconciliation of total consolidated assets (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Segment Reporting, Asset Reconciling Item [Line Items]      
Total assets for reportable segments $ 25,637 $ 14,237 $ 12,906
Unallocated assets - DSIT headquarters 15,151 13,569 12,643
Unallocated assets - OmniMetrix headquarters 2,030 0 0
Assets of discontinued operations 0 0 27,597
Unallocated assets corporate headquarters 24,518 [1] 57,999 [1] 6,639 [1]
Total consolidated assets 67,336 85,805 59,785
Cash 22,676 33,666 6,259
Interest-bearing Deposits in Banks and Other Financial Institutions 0 18,000  
Escrow Deposit 0 5,961  
Restricted Cash and Cash Equivalents $ 814 $ 2,494 $ 300
[1] n 2012, includes $22,676 of unrestricted cash. In 2011, includes $33,666 of unrestricted cash, $18,000 of short-term deposits and $5,961 of funds held in escrow. In 2010, includes $6,259 of unrestricted cash and $300 of restricted deposits.