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Note 9 - Segment Information (Tables)
9 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
 
 
Three Months Ended December 31
, 2016
 
 
 
Biological
Indicators
 
 
Instruments
 
 
Cold Chain Monitoring
 
 
Cold Chain
Packaging
 
 
Total
 
Revenues
  $
9,248
    $
9,013
    $
3,102
    $
2,480
    $
23,843
 
                                         
Gross profit
  $
6,066
    $
5,706
    $
1,254
    $
511
     
13,537
 
Reconciling items
(1)
   
 
     
 
     
 
     
 
     
(9,657
)
Earnings before income taxes
   
 
     
 
     
 
     
 
    $
3,880
 
 
 
Three Months Ended December 31
, 2015
 
 
 
Biological
Indicators
 
 
Instruments
 
 
Cold Chain Monitoring
 
 
Cold Chain
Packaging
 
 
Total
 
Revenues
  $
7,819
    $
8,260
    $
2,853
    $
981
    $
19,913
 
                                         
Gross profit
  $
4,869
    $
5,511
    $
1,313
    $
516
     
12,209
 
Reconciling items
(1)
   
 
     
 
     
 
     
 
     
(8,758
)
Earnings before income taxes
   
 
     
 
     
 
     
 
    $
3,451
 
 
 
Nine Months Ended December 31
, 2016
 
 
 
Biological
Indicators
 
 
Instruments
 
 
Cold Chain Monitoring
 
 
Cold Chain
Packaging
 
 
Total
 
Revenues
  $
27,612
    $
25,928
    $
8,964
    $
6,862
    $
69,366
 
                                         
Gross profit
  $
17,986
    $
15,881
    $
3,578
    $
1,830
     
39,275
 
Reconciling items
(1)
   
 
     
 
     
 
     
 
     
(30,014
)
Earnings before income taxes
   
 
     
 
     
 
     
 
    $
9,261
 
 
 
Nine Months Ended December 31
, 2015
 
 
 
Biological
Indicators
 
 
Instruments
 
 
Cold Chain Monitoring
 
 
Cold Chain
Packaging
 
 
Total
 
Revenues
  $
23,537
    $
25,819
    $
7,954
    $
2,537
    $
59,847
 
                                         
Gross profit
  $
15,157
    $
16,571
    $
3,326
    $
1,363
     
36,417
 
Reconciling items
(1)
   
 
     
 
     
 
     
 
     
(26,647
)
Earnings before income taxes
   
 
     
 
     
 
     
 
    $
9,770
 
Reconciliation of Assets from Segment to Consolidated [Table Text Block]
 
 
December 31, 2016
 
 
March 31,
201
6
 
Total assets (in thousands):
               
Biological Indicators
  $
67,894
    $
56,724
 
Instruments
   
38,295
     
49,077
 
Cold Chain Monitoring
   
35,497
     
27,613
 
Cold Chain Packaging
   
21,325
     
19,478
 
Corporate and administrative
   
7,442
     
7,856
 
    $
170,453
    $
160,748
 
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
 
 
Three
M
onths
E
nded
December 31
,
 
 
Nine Months Ended
December 31,
 
 
 
201
6
 
 
2015
 
 
2016
 
 
2015
 
Net revenues from unaffiliated customers:
                               
United States
  $
13,844
    $
12,787
    $
44,758
    $
37,510
 
Foreign
   
9,999
     
7,126
     
24,608
     
22,337
 
    $
23,843
    $
19,913
    $
69,366
    $
59,847